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CAD conversion is an essential element of computer-aided design (CAD) processes. It is crucial when working with different suppliers or partners who use distinct CAD systems. However, it is important to understand that each conversion can introduce changes in the quality or shape of your model. Therefore, CAD conversion validation is a vital process to ensure the integrity of your models. Let's delve into the details of this process and how to perform it correctly.

What is CAD Conversion Validation?

CAD conversion validation involves identifying the quality and shape changes introduced during the conversion of a CAD model, whether it is a model from a supplier or partner to your own CAD system. This process encompasses various conversion methods, including BREP conversion, parametric feature conversion, or manual remastering.

When using neutral formats such as IGES, STEP, or Parasolid, conversion validation allows you to identify if any changes are introduced during export or import.

Why is it Important?

During geometric conversion or manual remastering of a model, it may be tempting to rely solely on the naked eye to compare versions and identify modifications. However, this method is far from infallible. Minor yet potentially critical changes can easily go unnoticed.

This is where CAD conversion validation comes into play. It enables you to compare different versions of a model more accurately and objectively, helping you spot changes that could affect the quality or functionality of your design.

Furthermore, CAD conversion validation can assist you in comparing different conversion methods to identify the best options. In other words, it can help determine which conversion method is the most efficient and least likely to introduce errors or unwanted changes.

CADIQ: Your Ally for CAD Conversion Validation

The quality and integrity of CAD models are crucial elements in any design process. To effectively tackle the challenges related to CAD stability, a specialized tool is more than necessary. This is where CADIQ comes into play.

  • Anomaly Detection: CADIQ is skilled at identifying discrepancies and inconsistencies in CAD models that could impact subsequent stages such as manufacturing or analysis.
  • Sophisticated Comparison: This tool has advanced features for 3D CAD model comparison, which greatly facilitates data validation, legacy data management, and the information transfer process.
  • Extended Compatibility: CADIQ validates models from all major CAD systems and neutral formats, making it universally applicable.
  • Detailed Visualization: It highlights issues in a 3D display environment, emphasizing the geometric, functional, and compositional aspects of the product that have been modified, omitted, or added.
  • Effective Reuse: CADIQ detects modifications that are likely to affect the model's reuse for downstream applications like analysis, manufacturing, and data archiving.
  • Easy to Use: Its interface can be customized to mimic that of major CAD systems, allowing for quick user proficiency.

Taking into account its wide range of features and capabilities, CADIQ stands as the optimal choice for any professional engaged in CAD conversion validation. Not only does it enable identification and resolution of model discrepancies, but it also serves as a reliable platform for delivering certified data. A solution perfectly in sync with the requirements of our field.

Example of CAD Conversion Validation Report Presentation with CADIQ

The PDF example below was automatically generated with CADIQ to compare a source model from Catia V4 to its converted model in Catia V5 format. The CADIQ configuration was set to document shape changes and quality defects. Some minor defects were intentionally filtered out. Users can navigate through each source quality defect (left side) and each target quality defect or deviation (right side), select a diagnostic type, and then select an item to zoom in on each deviation or defect. The properties provide related information about the quality defects or deviations between the V4 and V5 models. Use the transparency option to visualize cavities.

The PDF template is fully customizable. You can modify the logo, add intellectual properties, or add/remove icons, 3D windows, and other fields. Make sure to use Adobe Reader X or higher and enable JavaScript to properly view this 3D PDF file.


CAD conversion validation is a crucial process to ensure the quality and integrity of your CAD models. Whether you use BREP conversion, parametric feature conversion, or manual remastering, it is essential to check for changes introduced during the conversion. This way, you can ensure that your models are as accurate and reliable as possible while minimizing the risk of errors or future issues.

CADIQ provides automatic validation of your conversions regardless of the methodology. Reports are generated in text or side-by-side 3D visualization, allowing for quick identification of deviations.

In the end, CAD conversion validation is a practice that can help optimize your design processes, improve the quality of your products, and enhance your clients' trust in your work. So, don't wait any longer and integrate it into your workflow today!